FSA1259AK8X - onsemi

Manufacturer Part Number

FSA1259AK8X

Manufacturer

onsemi

Introduction

The FSA1259AK8X is an obsolete high-performance, single-pole single-throw (SPST) analog switch. It was designed for precision applications in analog signal switching and routing.

Product Features and Performance

SPST NO switch configuration

1:1 Multiplexer/Demultiplexer circuit

2 circuits per device

Low on-state resistance of 850mOhm

Excellent channel-to-channel matching (ΔRon) of 50mOhm

Wide supply voltage range from 1.65V to 5.5V

Fast switching times: Ton (max 7.5ns), Toff (max 17ns)

High -3db bandwidth of 240MHz

Low charge injection of 15pC

Channel capacitance (CS(off), CD(off)) is 21pF

Maximum leakage current (IS(off)) of 10nA

Outstanding crosstalk performance of -73dB at 1MHz

Product Advantages

High precision and low distortion make it suitable for audio and video applications

Fast switching speed enhances overall system performance

Low on-state resistance and channel-to-channel matching improve signal integrity

Broad voltage supply range adds versatility across various designs

High bandwidth supports high-speed signal switching

Key Technical Parameters

On-State Resistance (Max): 850mOhm

Channel-to-Channel Matching (ΔRon): 50mOhm

Voltage Supply, Single (V+): 1.65V ~ 5.5V

Switch Time (Ton, Toff) (Max): 7.5ns, 17ns

-3db Bandwidth: 240MHz

Charge Injection: 15pC

Channel Capacitance: 21pF

Current Leakage: 10nA

Crosstalk: -73dB @ 1MHz

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Low leakage current and power consumption enhance product reliability and longevity

Operating temperature range of -40°C to 85°C ensures stable performance across various environmental conditions

Compatibility

The surface mount packaging (8-VFSOP) is compatible with modern PCB technology, supporting compact and efficient design layouts

Application Areas

Precision analog signal routing and switching

High-speed data acquisition systems

Audio and video signal processing circuits

Telecommunications interfaces

Product Lifecycle

The FSA1259AK8X is marked as obsolete, indicating it is in the end stage of its product lifecycle. Availability of replacements or upgrades should be checked with onsemi.

Several Key Reasons to Choose This Product

High performance and precision for critical analog signal applications

Low distortion and high-speed switching benefit audio and video signal integrity

Wide operational range supports diverse electronic systems

Compatibility with modern PCB designs enhances ease of use and design flexibility

Despite its obsolescence, it remains a viable choice for specific legacy applications requiring high-performance analog switching